Finding the Fourth Proportional to 131,277.68, 181,160.88 and 74,687.84
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Solution
The fourth proportional to 131,277.68, 181,160.88 and 74,687.84 is: 103,067.90
Step by Step Solution
- Step 1: Write the proportion equation
131,277.68 : 181,160.88 = 74,687.84 : x - Step 2: Convert to fraction form
131,277.68/181,160.88 = 74,687.84/x - Step 3: Cross multiply
131,277.68x = 181,160.88 × 74,687.84 - Step 4: Simplify right side
131,277.68x = 13,530,514,819.70 - Step 5: Solve for x
x = 13,530,514,819.70/131,277.68 - Step 6: Final answer
x = 103,067.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.